Prime Minister Narendra Modi greeted by Bihar chief minister Nitish Kumar. Modi said the central government was formulating special schemes to empower women and OBCs in the state of Bihar. (Image via Twitter, @PIB_India)

Kumar was speaking at the inauguration function of an engineering college at Chandi, around 95 km to the southeast of Patna.

"I extended full courtesy, when I received him (the PM) at the airport. However, he did not return the same courtesy to the lone state government representative and road construction department minister Rajiv Ranjan alias Lallan Singh, by not allowing him to speak even for two minutes at a recent function in Arrah," Kumar said.

Addressing an election rally in Arrah earlier this week, Modi had announced a package of Rs 1.25 lakh crore. In the course of his speech, Modi questioned Kumar's stand on the Bihar's Bimaru status and asked why he repeatedly requested the central government for help.

Responding to Modi’s comment, Kumar said, "People can call me a 'yachak' (solicitor) or a beggar, but I will continue to strive for the state's development till my last breath."

In another rally at Saharsa, Modi had called on people to throw out the Nitish Kumar government for its “arrogance and insensitivity” in returning financial help from Gujarat after the 2008 Kosi floods.

Reminding people that he was the son of a freedom fighter, Kumar said people who themselves lacked courtesy, were now terming his courteousness as 'arrogance'.

The chief minister also said Modi will only come to Bihar during elections, but he himself was a “permanent fixture”.